A compact dual polarized 3:1 bandwidth omnidirectional array of spiral antennas

Regis Guinvarc'H (1) , Mohammed Serhir (2) , Fabrice Boust (3)

1 SONDRA - Sondra, CentraleSupélec, Université Paris-Saclay (COmUE)
2 GeePs - Laboratoire Génie électrique et électronique de Paris
3 ONERA - The French Aerospace Lab [Palaiseau]

A circularly polarized wideband omnidirectional array of spiral antennas is presented. It covers the frequency band from 1.2 GHz up to 3.6 GHz while keeping a good S11 and an omnidirectional coverage. This array achieved a dual polarization using left and right hands archimedean spiral antennas. The gain of the array is enhanced using a unique cavity for the entire array and the realized gain is above the maximum theoretical gain of a single spiral antenna.

Mots clés: COMPACT ANTENNA; OMNIDIRECTIONAL ANTENNAS; RADAR; SPIRAL ANTENNA; WIDEBAND ARRAY

Domaines: Electromagnétisme

Regis Guinvarc'H, Mohammed Serhir, Fabrice Boust. A compact dual polarized 3:1 bandwidth omnidirectional array of spiral antennas. IEEE Antennas and Wireless Propagation Letters, 2016, 15, pp.1909 - 1912. ⟨10.1109/LAWP.2016.2542982⟩. ⟨hal-01309233⟩